Actually, I find that the hour goes slowly and that it's the delivery shift hours that go really quickly
Yeah, when I was on the till I was serving a lady who wanted to purchase something using one of the shopping centres giftcards - something we normally don't do. I explained that to her and she said okay she'd pay by card. Once I served her, she left.
Now whilst I'm serving the next customer and having a chat to him whilst I'm serving him, the woman walks back in and says 'Just to let you know but you do accept the cards because it says so in your shop window, so thank you for wasting my time'. I had to explain to her that I'm sorry and I'm normally working on shoes and have been told in the past that we don't accept those type of cards - only our giftcards. In hindsight though, I guess I could've asked one of the tillgirls next to me just to double check if we did/didn't accept the cards.
So yeah that put a downer on my day, but straight afterwards I apologised to the customer I was serving before the woman interrupted and carried on packing their stuff. I told them thank you very much and wished them a good day to which they said 'Brilliant, thank you have a good day yourself and thank you for not wasting our time' - with a smile on their faces and one of the daughters even gave me a wink. They had been standing behind the woman in the queue whilst she was being served and had overheard the whole thing, including my explanation of me not normally working on tills, so to hear them take sympathy at my embarrassing situation actually brightened my day
But yeah, lesson learned!